* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/config.h>
#include <linux/compat.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/errno.h>
-#include <asm/compat_signal.h>
#include <asm/uaccess.h>
#include "signal32.h"
}
static int
-put_sigset32(compat_sigset_t *up, sigset_t *set, size_t sz)
+put_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
{
compat_sigset_t s;
}
static int
-get_sigset32(compat_sigset_t *up, sigset_t *set, size_t sz)
+get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
{
compat_sigset_t s;
int r;
return r;
}
-int sys32_rt_sigprocmask(int how, compat_sigset_t *set, compat_sigset_t *oset,
+int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset,
unsigned int sigsetsize)
{
sigset_t old_set, new_set;
if (set && get_sigset32(set, &new_set, sigsetsize))
return -EFAULT;
- KERNEL_SYSCALL(ret, sys_rt_sigprocmask, how, set ? &new_set : NULL,
- oset ? &old_set : NULL, sigsetsize);
+ KERNEL_SYSCALL(ret, sys_rt_sigprocmask, how, set ? (sigset_t __user *)&new_set : NULL,
+ oset ? (sigset_t __user *)&old_set : NULL, sigsetsize);
if (!ret && oset && put_sigset32(oset, &old_set, sigsetsize))
return -EFAULT;
}
-int sys32_rt_sigpending(compat_sigset_t *uset, unsigned int sigsetsize)
+int sys32_rt_sigpending(compat_sigset_t __user *uset, unsigned int sigsetsize)
{
int ret;
sigset_t set;
- KERNEL_SYSCALL(ret, sys_rt_sigpending, &set, sigsetsize);
+ KERNEL_SYSCALL(ret, sys_rt_sigpending, (sigset_t __user *)&set, sigsetsize);
if (!ret && put_sigset32(uset, &set, sigsetsize))
return -EFAULT;
}
long
-sys32_rt_sigaction(int sig, const struct sigaction32 *act, struct sigaction32 *oact,
+sys32_rt_sigaction(int sig, const struct sigaction32 __user *act, struct sigaction32 __user *oact,
size_t sigsetsize)
{
struct k_sigaction32 new_sa32, old_sa32;
}
int
-do_sigaltstack32 (const compat_stack_t *uss32, compat_stack_t *uoss32, unsigned long sp)
+do_sigaltstack32 (const compat_stack_t __user *uss32, compat_stack_t __user *uoss32, unsigned long sp)
{
compat_stack_t ss32, oss32;
stack_t ss, oss;
if (copy_from_user(&ss32, uss32, sizeof ss32))
return -EFAULT;
- ss.ss_sp = (void *)(unsigned long)ss32.ss_sp;
+ ss.ss_sp = (void __user *)(unsigned long)ss32.ss_sp;
ss.ss_flags = ss32.ss_flags;
ss.ss_size = ss32.ss_size;
if (uoss32)
ossp = &oss;
- KERNEL_SYSCALL(ret, do_sigaltstack, ssp, ossp, sp);
+ KERNEL_SYSCALL(ret, do_sigaltstack, (const stack_t __user *)ssp, (stack_t __user *)ossp, sp);
if (!ret && uoss32) {
oss32.ss_sp = (unsigned int)(unsigned long)oss.ss_sp;
}
long
-restore_sigcontext32(struct compat_sigcontext *sc, struct compat_regfile * rf,
+restore_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf,
struct pt_regs *regs)
{
long err = 0;
* truncate for a 32-bit userspace.
*/
long
-setup_sigcontext32(struct compat_sigcontext *sc, struct compat_regfile * rf,
+setup_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf,
struct pt_regs *regs, int in_syscall)
{
compat_int_t flags = 0;
return err;
}
+
+int
+copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from)
+{
+ unsigned long tmp;
+ int err;
+
+ if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t)))
+ return -EFAULT;
+
+ err = __get_user(to->si_signo, &from->si_signo);
+ err |= __get_user(to->si_errno, &from->si_errno);
+ err |= __get_user(to->si_code, &from->si_code);
+
+ if (to->si_code < 0)
+ err |= __copy_from_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
+ else {
+ switch (to->si_code >> 16) {
+ case __SI_CHLD >> 16:
+ err |= __get_user(to->si_utime, &from->si_utime);
+ err |= __get_user(to->si_stime, &from->si_stime);
+ err |= __get_user(to->si_status, &from->si_status);
+ default:
+ err |= __get_user(to->si_pid, &from->si_pid);
+ err |= __get_user(to->si_uid, &from->si_uid);
+ break;
+ case __SI_FAULT >> 16:
+ err |= __get_user(tmp, &from->si_addr);
+ to->si_addr = (void __user *) tmp;
+ break;
+ case __SI_POLL >> 16:
+ err |= __get_user(to->si_band, &from->si_band);
+ err |= __get_user(to->si_fd, &from->si_fd);
+ break;
+ case __SI_RT >> 16: /* This is not generated by the kernel as of now. */
+ case __SI_MESGQ >> 16:
+ err |= __get_user(to->si_pid, &from->si_pid);
+ err |= __get_user(to->si_uid, &from->si_uid);
+ err |= __get_user(to->si_int, &from->si_int);
+ break;
+ }
+ }
+ return err;
+}
+
+int
+copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from)
+{
+ unsigned int addr;
+ int err;
+
+ if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
+ return -EFAULT;
+
+ /* If you change siginfo_t structure, please be sure
+ this code is fixed accordingly.
+ It should never copy any pad contained in the structure
+ to avoid security leaks, but must copy the generic
+ 3 ints plus the relevant union member.
+ This routine must convert siginfo from 64bit to 32bit as well
+ at the same time. */
+ err = __put_user(from->si_signo, &to->si_signo);
+ err |= __put_user(from->si_errno, &to->si_errno);
+ err |= __put_user((short)from->si_code, &to->si_code);
+ if (from->si_code < 0)
+ err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE);
+ else {
+ switch (from->si_code >> 16) {
+ case __SI_CHLD >> 16:
+ err |= __put_user(from->si_utime, &to->si_utime);
+ err |= __put_user(from->si_stime, &to->si_stime);
+ err |= __put_user(from->si_status, &to->si_status);
+ default:
+ err |= __put_user(from->si_pid, &to->si_pid);
+ err |= __put_user(from->si_uid, &to->si_uid);
+ break;
+ case __SI_FAULT >> 16:
+ /* avoid type-checking warnings by copying _pad[0] in lieu of si_addr... */
+ err |= __put_user(from->_sifields._pad[0], &to->si_addr);
+ break;
+ case __SI_POLL >> 16:
+ err |= __put_user(from->si_band, &to->si_band);
+ err |= __put_user(from->si_fd, &to->si_fd);
+ break;
+ case __SI_TIMER >> 16:
+ err |= __put_user(from->si_tid, &to->si_tid);
+ err |= __put_user(from->si_overrun, &to->si_overrun);
+ addr = (unsigned long) from->si_ptr;
+ err |= __put_user(addr, &to->si_ptr);
+ break;
+ case __SI_RT >> 16: /* Not generated by the kernel as of now. */
+ case __SI_MESGQ >> 16:
+ err |= __put_user(from->si_uid, &to->si_uid);
+ err |= __put_user(from->si_pid, &to->si_pid);
+ addr = (unsigned long) from->si_ptr;
+ err |= __put_user(addr, &to->si_ptr);
+ break;
+ }
+ }
+ return err;
+}
git://git.onelab.eu / linux-2.6.git / blobdiff